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ISL8121 Datasheet(PDF) 3 Page - Intersil Corporation

Part No. ISL8121
Description  3V to 20V, Two-Phase Buck PWM Controller with Integrated 4A MOSFET Drivers
Download  26 Pages
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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ISL8121 Datasheet(HTML) 3 Page - Intersil Corporation

 
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 3 / 26 page
background image
Block Diagram
SOFT-START
BOOT1
COMP
FB
REFERENCE
AND
FAULT LOGIC
Σ
Σ
CONTROL
LOGIC
GATE
CONTROL
GATE
CONTROL
CURRENT
CORRECTION
+
-
OC
EA
PWM1
PWM2
OVP
ISEN1
PVCC
VCC
EN
PGD
PHASE1
LG1
UG1
GND
PHASE2
LG2
UG2
BOOT2
ISEN2
FS
REFTRK
VDIFF
VSEN-
VSEN+
X1
VMON
VREG
OSCILLATOR
300mV +
-
VCC
SS
10
µA
VCC
20
µA
VCC
20
µA/1mA
20
µA
10
µA
110%
90%
REGULATOR
SHUNT LINEAR
POWER-ON
RESET (POR)
120%


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